Numerical models of zonal flow dynamos: An application to the ice giants

Geophysical and Astrophysical Fluid Dynamics

Volumn 101, Issue 5-6, 2007, Pages 371-388

  Gómez Pérez, Natalia ^a   Heimpel, Moritz ^a  

^a UNIVERSITY OF ALBERTA   (Canada)

Author keywords

Dynamo simulations; Neptune; Uranus; Zonal flow

Indexed keywords

FLOW OF FLUIDS; MAGNETIC FIELD EFFECTS; MATHEMATICAL MODELS; PLANETS; PRANDTL NUMBER;

MAGNETIC DIFFUSIVITY; RAYLEIGH NUMBER; ZONAL FLOW;

ICE;

FLOW OF FLUIDS; ICE; MAGNETIC FIELD EFFECTS; MATHEMATICAL MODELS; PLANETS; PRANDTL NUMBER;

GEOMAGNETIC FIELD; NEPTUNE; NUMERICAL MODEL; RAYLEIGH NUMBER; THERMAL CONVECTION; URANUS; ZONAL FLOW;

EID: 37049020460     PISSN: 03091929     EISSN: 10290419     Source Type: Journal    
DOI: 10.1080/03091920701485537     Document Type: Conference Paper

References (36)

1. Al-Shamali, F., Heimpel, MH and Aurnou, JM (2004) Varying the spherical shell geometry in rotating thermal convection. Geophys. Astrophys. Fluid Dyn., 98, pp. 153-169.
2. Aubert, J. (2005) Steady zonal flows in spherical shell dynamos. J. Fluid Mech, 542, pp. 53-67.
3. Aubert, J. and Wicht, J. (2004) Axial vs. equatorial dipolar dynamo models with implications for planetary magnetic fields. Earth Planet. Sci. Lett., 221, pp. 409-419.
4. Aurnou, JM and Heimpel, MH (2004) Zonal jets in rotating convection with mixed mechanical boundary conditions. Icarus, 169, pp. 492-498.
5. Aurnou, JM, Heimpel, MH and Wicht, J. (2007) The effects of vigorous mixing in a convective model of zonal flow on the ice giants. Icarus, 190, pp. 110-1126.
6. Christensen, UR and Aubert, J. (2006) Scaling properties of convection-driven dynamos in rotating spherical shells and aplication to planetary magnetic fields. Geophys. J. Int., 166, pp. 97-114.
7. Connerney, JEP (1993) Magnetic-fields of the outer planets. J. Geophys. Res.-Planets, 98, pp. 18659-18679.
8. Connerney, JEP, Acuña, MH and Ness, NF (1987) The magnetic-field of Uranus. J. Geophys. Res.-Space Phys., 92, pp. 15329-15336.
9. Connerney, JEP, Acuña, MH and Ness, NF (1991) The magnetic-field of Neptune. J. Geophys. Res.-Planets, 96, pp. 19023-19042.
10. Glatzmaier, G., Coe, R., Hongre, L. and Roberts, PH (1999) The role of the earth's mantle in controlling the frequency of geomagnetic reversals. Nature, 401, pp. 885-890.
11. Grote, E., Busse, FH and Tilgher, A. (2000) Regular and chaotic spherical dynamos. Phys. Earth Planet. Inter., 117, pp. 156-272.
12. Guillot, T., Stevenson, D., Hubbard, WB and Saumon, D. (2004) Interior of Jupiter, Cambridge University Press, Cambridge, UK
13. Heimpel, MH and Aurnou, JM (2005) Turbulent convection in rapidly rotating spherical shells: A model for equatorial and high latitude jets on Jupiter and Saturn. Icarus, 187, pp. 540-557.
14. Heimpel, MH, Aurnou, JM, Al-Shamali, F. and Pérez, N Gómez (2005) A numerical study of dynamo action as a function of spherical shell geometry. Earth Planet. Sci. Lett., 236, pp. 542-557.
15. Heimpel, MH, Aurnou, JM and Wicht, J. (2005) Simulation of an equatorial and high-latitude jets on Jupiter in a deep convection model. Nature, 438, pp. 193-196.
16. Holme, R. (1997) Three-dimensional kinematic dynamos with equatorial symmetry: Application to the magnetic fields of Uranus and Neptune. Phy. Earth Planet. Inter., 102, pp. 105-122.
17. Holme, R. and Bloxham, J. (1996) The magnetic fields of Uranus and Neptune: Methods and models. J. Geophys. Res.-Planets, 101, pp. 2177-2200.
18. Hubbard, WB and Marley, MS (1989) Optimized Jupiter, Saturn, and Uranus interior models. Icarus, 78, pp. 102-118.
19. Hubbard, WB, Nellis, WJ, Mitchell, AC, Holmes, NC, Limaye, SS and McCandless, PC (1991) Interior structure of Neptune-comparison with Uranus. Science, 253, pp. 648-651.
20. Hubbard, HB, Podolak, M. and Stevenson, DJ (1995) Neptune and Triton, Univ. Arizona Press, Tucson, AZ, USA
21. Kuang, W. and Bloxham, J. (1999) Numerical modeling of magnetohydrodynamic convection in a rapidly rotating spherical shell: weak and strong field dynamo action. J. Comput. Phys., 153, pp. 51-81.
22. Kutzner, C. and Christensen, UR (2002) From stable dipolar towards reversing numerical dynamos. Phys. Earth Planet. Inter., 131, pp. 29-45.
23. Love, JJ (2000) Dynamo action and the nearly axisymmetric magnetic field of Saturn. Geophys. Res. Lett., 27, pp. 2889-2892.
24. Nellis, WJ, Holmes, NC, Mitchell, AC, Hamilton, DC and Nicol, M. (1997) Equation of state and electrical conductivity of synthetic Uranus, a mixture of water, ammonia, and isopropanol, at shock pressure up to 200 GPa (2 Mbar). J. Chem. Phys., 107, pp. 9096-9100.
25. Ness, NF, Acuña, MH, Behannon, KW, Burlaga, LF, Connerney, JEP, Lepping, RP and Neubauer, FM (1986) Magnetic-fields at Uranus. Science, 233, pp. 85-89.
26. Ness, NF, Acuña, MH, Burlaga, LF, Connerney, JEP, Lepping, RP and Neubauer, FM (1989) Magnetic-fields at Neptune. Science, 246, pp. 1473-1478.
27. Olson, P. and Christensen, UR (2006) Dipole moment scaling for convection-driven planetary dynamos. Earth Planet. Sci. Lett., 205, pp. 561-571.
28. Podolak, M., Hubbard, HB and Stevenson, DJ (1991) Uranus, Univ. Arizona Press, Tucson, AZ, USA
29. Podolak, M., Podolak, JI and Marley, MS (2000) Further investigations of random models of Uranus and Neptune. Planet. Space Sci., 48, pp. 143-151.
30. Schubert, G., Chan, KH, Liao, X. and Zhang, K. (2004) Planetary dynamos: effects of electrically conducting flows overlying turbulent regions of magnetic field generation. Icarus, 172, pp. 305-315.
31. Stanley, S. and Bloxham, J. (2004) Convective-region geometry as the cause of Uranus' and Neptune's unusual magnetic fields. Nature, 428, pp. 151-153.
32. Stanley, S. and Bloxham, J. (2006) Numerical dynamo models of Uranus' and Neptune' magnetic fields. Icarus, 184, pp. 556-572.
33. Starchenko, SV and Jones, C. (2002) Typical velocities and magnetic field strengths in planetary interiors. Icarus, 157, pp. 426-435.
34. Stevenson, DJ (1982) Interior of the giant planets. Ann. Rev. Earth Planet. Sci., 10, pp. 257-295.
35. Stevenson, DJ (2003) Planetary magnetic fields. Earth Planet. Sci. Lett., 208, pp. 1-11.
36. Wicht, J. (2002) Inner-core conductivity in numerical dynamo simulations. Phys. Earth. Planet. Inter., 132, pp. 281-302.